The chair has a back (1), a seat (2) and a footrest (3), and also a headrest (4) with a rear plate (6) for resting on the edge of the swimming pool, there being holes for the expulsion of air and/or water impelled by one or more pumps located on the headrest (4), distribution being achieved by means of conduits (8). The components that constitute the chair are articulated, which allows the chair to be folded not only partially but also completely, thereby achieving a reduction in volume not only when the chair is collapsed down when not in use but installed at the swimming pool but also when stored, which transforms it into a device that can be acquired and transported and installed immediately without the need for works or for emptying the swimming pool, and there is no need to assemble the chair which simply has to be unfolded. Provision is made for the distribution of air and/or water by means of rotatable swivel components.
